Garmin colorado 400c User Manual

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 400c

Proper transducer installation is key to getting the best performance 

from your fishfinder. If the transducer lead is too short, extension 

cables are available from your Garmin dealer. Coil and secure any 

excess cable. 

  CAUtION: DO NOT cut the transducer lead or any part of 

the transducer cable, because cutting the transducer cable voids 

your warranty. The cable cannot be spliced and connected to any 

existing (Garmin or non-Garmin) transducer cables.

The following pages contain tips and basic installation instructions 

for some popular transducers. Detailed installation instructions are 

provided in the transducer kits. Some transducers might have to be 

installed by a professional marine installer.

1.  Insert the rubber washer and plastic spacer into the

transducer at the same time. DO NOT lubricate the rubber

washer.

2.  Route the cable toward the back of the transducer. Slide the

transducer into the transducer mount.

3.  Place a 5 mm flat washer on the 10-32 x 1.75" screw, and

insert the screw through the transducer mount, spacer, and

rubber washer.

4.  Place the remaining 5 mm flat washer on the exposed end.

Install the 10-32 lock nut finger tight. You can tighten the

transducer further after installation on the boat.